const pageData = {};

for (let i = 1; i < 5; ++i) {
  (function(index) {
    pageData['slider' + index + 'change'] = function(e) {
      console.log(
        'slider' + index + '发生change事件，携带值为',
        e.detail.value
      );
    };
  })(i);
}
Page(pageData);
